ESV: And our enemies said, "They will not know or see till we come among them and kill them and stop the work."
NIV: Also our enemies said, "Before they know it or see us, we will be right there among them and will kill them and put an end to the work."
NASB: And our enemies said, 'They will not know or see until we come among them, kill them, and put a stop to the work.'
CSB: And our enemies said, "They won’t realize it until we’re among them and can kill them and stop the work."
NLT: Meanwhile, our enemies were saying, 'Before they know what’s happening, we will swoop down on them and kill them and end their work.'
KJV: And our adversaries said, They shall not know, neither see, till we come in the midst among them, and slay them, and cause the work to cease.
NKJV: And our adversaries said, “They will neither know nor see anything, till we come into their midst and kill them and cause the work to cease.”